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Segment Information
 9 Months Ended
Sep. 30, 2023
Segment Reporting Information, Revenue for Reportable Segment [Abstract]  
Segment Information SEGMENT INFORMATION
Gross profit is the Company’s measure for segment reporting. There were no intersegment sales in the periods presented. Refer to Note 2, Revenue and Contracts with Customers, for additional details on revenue for each segment. The following table presents the Company’s segment information (in millions):

 Three Months Ended 
 September 30,		Nine Months Ended 
 September 30,
2023202220232022
Revenue
LEU segment:
Separative work units$40.5 $7.7 $147.4 $106.0 
Uranium— 12.5 39.5 17.4 
Total40.5 20.2 186.9 123.4 
Technical Solutions segment10.8 13.0 29.7 44.2 
Total revenue$51.3 $33.2 $216.6 $167.6 
Segment Gross Profit
LEU segment$10.1 $1.3 $60.8 $63.6 
Technical Solutions segment1.2 1.0 1.5 5.9 
Gross profit$11.3 $2.3 $62.3 $69.5 


Revenue from Major Customers (10% or More of Total Revenue)

In the three months ended September 30, 2023, three customers in the LEU segment individually represented $14.9 million, $12.5 million, and $8.7 million of revenue. In the nine months ended September 30, 2023, two customers in the LEU segment individually represented $54.1 million and $47.8 million of revenue. One customer in the Technical Solutions segment individually represented $10.7 million and $29.4 million of revenue in the three and nine months ended September 30, 2023, respectively.
In the three months ended September 30, 2022, two customers in the LEU segment individually represented $12.6 million and $7.3 million of revenue. In the nine months ended September 30, 2022, two customers in the LEU segment individually represented $44.9 million and $19.2 million of revenue. One customer in the Technical Solutions segment individually represented $11.7 million and $35.7 million of revenue in the three and nine months ended September 30, 2022, respectively.